Apple has announced that it sold more than 300,000 iPads on launch day, surpassing the launch weekend total of the original iPhone. These sales included deliveries of pre-ordered iPads, deliveries to channel partners, and sales at Apple retail stores. In addition, iPad users downloaded over one million apps from the App Store and over 250,000 ebooks from the iBookstore during the first day. “It feels great to have the iPad launched into the world—it’s…